Grades 9-12

Ghosts of Tsunamis Past

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Ghosts of Tsunamis Past

By unearthing sediment deposits tsunamis leave behind, scientists can study the waves' origins, extent, and frequency — and identify locations that have the geological apparatus to produce a tsunami, but haven't in written history.

From Math to Maps

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From Math to Maps

A tsunami hasn't affected the Pacific Northwest coast since 1964, yet bright-blue metal signs warning of them dot coastal streets. Find out why scientists are certain these communities are at risk.

Fear the Future Tsunami?

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Fear the Future Tsunami?

Why did Hawaiian officials evacuate Hilo Bay in 1986 after a 7.7 earthquake but call off an evacuation in 2003 after a 7.8 one? The answer is DART. Learn more.

Article: Yellowstone National Park is a Volcano

Article

Article: Yellowstone National Park is a Volcano

More than three million visitors step onto this charged volcanic landscape every year. Yet the geologists that monitor it are unconcerned about a large, imminent eruption. Find out why.

Article: Signs of Restlessness

Article

Article: Signs of Restlessness

The magma chamber responsible for Yellowstone's volcanic activity is buried 8km beneath the surface. Find out how researchers monitor its geologic moves.

The Uncommon Aye-Aye: An Interview with Eleanor Sterling

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The Uncommon Aye-Aye: An Interview with Eleanor Sterling

The dozens of diverse lemur species on Madagascar are a motley crew. Still, none look and act quite like the aye-aye. Take a closer look at this lemur, which is considered one of the world's strangest animals altogether.

Why Mangroves Matter

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Why Mangroves Matter

Learn more about these forests, once generally dismissed as swampy wastelands but now valued as remarkably diverse and important ecosystems.

What's a Mangrove? And How Does It Work?

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What's a Mangrove? And How Does It Work?

Investigate this remarkably tough plant that can live in water up to 100 times saltier than most other plants can tolerate, not to mention thrive despite twice-daily flooding by ocean tides.

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